/*
 *
 *  Copyright (C) 2010 Tal Eisenberg
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package tal.drivechain.module.properties;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import org.w3c.dom.NodeList;
import tal.drivechain.chain.ChainNode;
import tal.drivechain.wildcard.DoubleElement;
import tal.drivechain.wildcard.Wildcard;
import tal.drivechain.wildcard.WildcardElement;

/**
 *
 * @author Main
 */
public class WildcardParser implements PropertyParser {
    Constructor elementConstructor;
    
    public void setAttribures(HashMap<String, String> attributes, NodeList childElements) throws IllegalArgumentException {
        String element = attributes.get("elementClass");
        try {   
            Class elementClass;
            if (element!=null) {
                elementClass = Class.forName(element);
                elementClass.asSubclass(WildcardElement.class);
            } else elementClass = DoubleElement.class;
            elementConstructor = elementClass.getConstructor();
        } catch (NoSuchMethodException ex) {
            throw new IllegalArgumentException("Invalid element class: " + element + " (" + ex + ")");
        } catch (SecurityException ex) {
            throw new IllegalArgumentException("Invalid element class: " + element + " (" + ex + ")");
        } catch (ClassNotFoundException ex) {
            throw new IllegalArgumentException("Invalid elementClass: " + element);
        }
    }

    public Object parseProperty(String prop) {
        try {
            return Wildcard.parseDefinition(prop, (WildcardElement)elementConstructor.newInstance());
        } catch (InstantiationException ex) {
            throw new IllegalArgumentException("Can't instantiate WildcardElement: " + ex);
        } catch (InvocationTargetException ex) {
            throw new IllegalArgumentException("Can't instantiate WildcardElement: " + ex);            
        } catch (IllegalAccessException ex) {
            throw new IllegalArgumentException("Can't instantiate WildcardElement: " + ex);
        }
    }

    public String getPropertyType() {
        return "Wildcard";
    }

    public String propToString(Object property, ChainNode context) {
        return ((Wildcard)property).getWildcardString(context);
    }

}
